Question

a drug company claims that an allergy medication causes headaches in 5% of those who take it. a medical researcher believes that more than 5% of those who take the drug actually get headaches. identify the population(s): all individuals who take the medication. the proportion of those who take the drug who get a headache.

Explanation:

In statistics, a population is the entire group of interest. Here, the interest is in those who take the allergy medication (to study headache occurrence). The second option is a parameter (proportion), not a population. So the population is all individuals who take the medication.

Answer:

All individuals who take the medication.